COMMON STOCK UNITS, COMMON STOCK AND COMMON STOCK WARRANTS (Details)								1 Months Ended		3 Months Ended	12 Months Ended		35 Months Ended
	May 05, 2020 USD ($)	Dec. 09, 2019 USD ($) $ / shares shares	Oct. 17, 2018 USD ($) $ / shares shares	Apr. 12, 2017 USD ($)	Nov. 02, 2015 $ / shares shares	Jun. 30, 2015 Vote $ / shares shares	Apr. 17, 2015 shares	Oct. 31, 2018 USD ($) shares	Dec. 31, 2014 shares	Mar. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2015 shares	Mar. 31, 2020 USD ($) $ / shares shares	Mar. 12, 2020 $ / shares	Dec. 27, 2019 $ / shares shares	Dec. 06, 2019 $ / shares
Shares issued, stock awards (in shares) | shares										369,000	1,544,926
Number of units issued during the period | shares			9,151,000
Net proceeds | $			$ 1,900,000
Number of common stock shares offered per unit in underwritten public offering | shares			1
Number of warrants offered per unit in underwritten public offering. | shares			1
Number of common shares warrant holders may purchase | shares			1
Other income | $										$ 752,000
Exercise price of warrants exercised for cash (in dollars per share)			$ 0.35
Number of Shares Under Warrants
Warrants outstanding | shares										98,013,256			98,013,256
Exercise Price
Shares authorized (in shares) | shares						650,000,000				650,000,000	650,000,000		650,000,000
Par or stated value of common stock (in dollars per share)						$ 0.001				$ 0.001	$ 0.001		$ 0.001
Number of votes per share | Vote						1
Ownership percentage required to control board of directors (as a percent)						50.00%
Stock price (in dollars per share)			$ 0.25
Convertible Notes
Conversion of shares (in shares) | shares												2,625,000
Warrants
Purchase price per share acquired (in dollars per share)		$ 0.50													$ 0.35
Fair value of warrants issued | $										$ 400,000	$ 1,100,000		$ 400,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares		80,000,000													8,556,456
Exercise Price
Exercise price per share										$ 0.50	$ 0.50		$ 0.50		$ 0.35
Expiration term										1 year
Stock price (in dollars per share)										$ 0.16	0.24		0.16		0.23
Warrant exercise price										$ 0.50	$ 0.50		$ 0.50		$ 0.35
Warrants and rights outstanding term										7 years 9 months 18 days	7 years 9 months 18 days		7 years 9 months 18 days		3 years
Warrants | Stock Volatility
Exercise Price
Warrants and Rights Outstanding, Measurement Input										40.0	40.0		40.0		40.0
Warrants | Risk-Free Interest Rate
Exercise Price
Warrants and Rights Outstanding, Measurement Input										0.6	1.8		0.6		1.6
Warrants | Convertible Notes
Number of warrants issued in private placement of its senior convertible notes | shares										1,000,000
Exercise Price
Exercise price per share										$ 5.00			$ 5.00
Warrant exercise price										$ 5.00			5.00
Warrants. | Convertible Notes
Number of warrants issued in private placement of its senior convertible notes | shares										8,600,000
Exercise Price
Stock price (in dollars per share)										$ 0.35			$ 0.35
ATM
Number of units issued during the period | shares								9,125,000
Net proceeds | $								$ 1,900,000					$ 500,000
Issue of shares | shares													1,168,300
Period of time the ATM is suspended (in years)								2 years
Private Placement
Net proceeds | $		$ 4,000,000
Purchase price per share acquired (in dollars per share)		$ 0.40
AMER International Group
Purchase price per share acquired (in dollars per share)		$ 0.40														$ 0.27
Denomination of amount borrowed | $		$ 100,000,000
Warrants to purchase common shares | shares										12,000,000
Fair value of warrants issued | $										$ 100,000,000			$ 100,000,000
AMER International Group | Warrants
Number of warrants issued in private placement of its senior convertible notes | shares										80,000,000
AMER International Group | Warrants.
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares					80,000,000
Exercise Price
Exercise price per share					$ 0.50
Warrant exercise price					$ 0.50
AMER International Group | Private Placement
Warrants to purchase common shares | shares					80,000,000		80,000,000
Exercise Price
Exercise price per share					$ 0.50
Warrant exercise price					$ 0.50
Minimum
Exercise Price
Exercise price per share										$ 0.35			$ 0.35
Stock price (in dollars per share)														$ 0.06
Warrant exercise price										0.35			0.35
Maximum
Exercise Price
Exercise price per share										5.00			5.00
Warrant exercise price										$ 5.00			$ 5.00
Maximum | Convertible Notes
Conversion of shares (in shares) | shares									8,535,000
Maximum | ATM
Net proceeds | $	$ 20,000,000			$ 20,000,000
Bruce D. Hansen
Net proceeds | $			$ 500,000